If it's SSD then updating might work. Has issues on sdcard ipods.
Updating/initializing is simple - check the manual.
To delete existing database files (might not be necessary - see if updating works first), delete files in rockbox directory that begin with 'database_' and end with .tcd.
There are specific 'issues' to be aware of with SSD mods, but you'll have to ask people who have ssd ipod, I only have sdcard ipods.